Cita APA (7th ed.)
Commoner, B. The Closing Circle: Nature, Man and Technology. Bantam Books.
Cita Chicago (17th ed.)
Commoner, Barry. The Closing Circle: Nature, Man and Technology. Nueva York, EUA: Bantam Books.
Cita MLA (9th ed.)
Commoner, Barry. The Closing Circle: Nature, Man and Technology. Bantam Books.
Atenció: Aquestes cites poden no estar 100% correctes.